WO2010002015A1 - Red phosphor, method for producing red phosphor, white light source, illuminating device, and liquid crystal display device - Google Patents

Abstract

Disclosed is a red phosphor having high luminous intensity and high luminance, which is obtained by using a compound containing silicon, aluminum, strontium, europium, nitrogen and oxygen.  By using the red phosphor, a white LED can have a wide color gamut. The red phosphor contains an element A, europium (Eu), silicon (Si), aluminum (Al), oxygen (O) and nitrogen (N) at the atomic number ratio of composition formula (1). In this connection, the element A in composition formula (1) is at least one of magnesium (Mg), calcium (Ca), strontium (Sr) and barium (Ba); and m, x, y and n in composition formula (1) satisfy 3 < m < 5, 0 < x < 1, 0 < y < 2 and 0 < n < 10.       [A_(m-x)Eu_x]Si₉Al_yO_nN_{[12+y-2(n-m)/3]}     (1)

Description

 Light body, red light body law, white light, illuminator, and field of art

 The present invention relates to a red light body and a method for manufacturing the same, a white light device using the red light material, and a device.

White light composed of light-emitting diodes is used for the device and the device. As such white light, a blue light-emitting diode (denoted) with an indium umagnet net (denoted by TG Ce) that contains cerium is known.

 In addition to this, it is known that a green and a red phosphor are arranged on a blue (for example, patent). Furthermore, a configuration has also been proposed in which a quality obtained by solidifying Ca S 3 or the like that emits light in blue-violet or blue is combined with other fluorescent materials in a predetermined combination (for example, Patent 2).

 2000 0747

2 393 39 However, white light with a blue G Ce light body has a reddish white light in the spectrum of the YG Ce light body, so there is no bluish white light. For this reason, it is difficult to achieve pure white light with an illumination device constructed using this colored light. In addition, it is difficult to display the actual display with the liquid crystal device used for this colored light. In addition, the white light with green and red compound light bodies arranged in the blue color is subject to water decomposition of the compound light bodies, so that the luminance deteriorates with time. For this reason, it is difficult to display a quality that can prevent the brightness from being reduced by using the lighting and the device constructed using this colored light.

 In addition, white light using a quality made of solid Ca S f 3 etc. has the trouble of mixing two types of quality.

 Therefore, providing a red light body with high luminous intensity and high brightness, and a method for manufacturing the same, providing white light and a device capable of producing white light by using this light body, and actuality The purpose is to provide a place for the future. Mysterious

 The bright light body to achieve the purpose has the elements, um (), (S), aum (, oxygen (), and () in the case of the following (), provided that the composition ( The elements in) are the ones of gneum (, (C a), strontium (S) or lithium (Ba). Also, this (),,,,, 3 5,, 2, O Satisfies the relationship of zero.

XS gy O 2 y2 ・ (The light structure of 1 above has a strong light emission and high brightness because of the presence of strontium. It has been confirmed that this light, for example, with a length of 662 pixels, can produce approximately 5 times the intensity of the G Ce light. This is also the red light law. , Um (), (S), and Aum (elemental acid compounds, Nitride, Nitride, and Aum are prepared so that A has the composition (). In this way, a light body having the composition () can be obtained by using the color light emitting diode having a green light body together with the above light body. It is a white light placed on the window, a lighting device with a plurality of these colored lights on the base, and a liquid crystal device using this colored light as a net light.

 Because bright colored light uses a bright light body, a red light wavelength (for example, 6 · 4 to 7 7 O) can be obtained, and the luminous intensity is high and the luminance is high. Therefore, it is possible to obtain bright color light of three colors, that is, the color light of the blue light emitting diode, the green light by the green light body, and the red light by the red light body. And with such lighting and lighting using white light, it is possible to display with bright light.

 As described above, since a bright light body has a red light emitting pixel length, red light is possible, and the luminous intensity is higher than that of a conventional light body and the brightness is high.

 Bright color light, which has a light emission pixel length in red, has higher luminous intensity than conventional color-based light bodies, and has high brightness. There is a point if you can.

 Since bright and bright colored light is used, can obtain a wide and bright colored light, so that it is possible to achieve bright white light.

 The bright color light is used for the light that illuminates the light, so the light illuminates the light with a wide bright color light.

8 Can. Therefore, it is possible to obtain a white color on the surface of the net, and it is possible to display an image with excellent actuality. A simple description of the surface

 FIG. 5 is a diagram showing an example of the spectrum of a bright light body. 2 and 3 are diagrams showing the luminous properties of a bright light body. FIG. 3 is a diagram illustrating the chromaticity (X) of a bright light body.

 Fig. 4 shows the scale of the bright light's text as the maximum pixel C p S m (that).

 5. The spectrum of the bright light body was categorized as the maximum pixel C S (part 2).

 6 is a sketch of the light body in which the number of children of Aum (1) has changed in composition ().

 Fig. 7 is a diagram showing the case where (9) of the ac (9) and (a) of the total of aum are changed based on 6.

 Fig. 8 is a graph showing the relationship between the luminous intensity of light and the luminous intensity.

 FIG. 9 is a diagram showing the properties of the red light body produced in the implementation.

 0 is a footer showing an embodiment of the law of the bright light body.

 [FIG. 5] is a plan view showing an embodiment relating to bright colored light.

 Figure 2 shows the spectrum of an example of bright colored light.

 FIG. 3 is a plan view showing a state of implementation relating to the clarification.

Fig. 4 shows a state of implementation relating to the clarification. 5 is the S image of the red light body produced in the implementation. 6 is the point of the red light body produced in the implementation.

 This is the analysis sketch.

 Fig. 7 shows the X-ray analysis spectrum of the red light body produced in the implementation.

 8 is an enlargement of the 5 S image.

 9 is the spectrum of the XR analysis of the photoconductor produced in the implementation. 20 is the ratio of the luminous intensity ratio when producing a red light.

 2 is the ratio of the degree of heating and the luminous intensity in the processing step for producing the red light body.

 22 is the ratio of La's degree of brightness when producing a red light.

 23 is the relative degree ratio of the run when the red light is produced.

 24 is the amount of the element remaining in the red light body when the red light body is produced.

 25 is the amount of the element remaining in the red light body when making the red light body.

 26 is the diameter of the red light body when producing a red light body.

 27 is the ratio of the brightness of the red light to the when making the red light.

 28 is the ratio of the ratio of the red light to the when making the red light.

Figure 29 shows the results when the ratio of carbonic acid, nitriding, and nitrogen is changed while the ratio of lanthanum and aluminum is fixed. FIG.

 30 is a diagram showing the X-axis of a light body produced by the method of Ming. Of the issue

 5 light, 2 color light emitting diode 43, 0 device, net, 20 light (5)

 The embodiment will be described in the following order based on the drawings.

 (Of light body)

2 2 (light)

8-3 (of colored light)

4 ・ 4 (position)

5 ・ 5 (Position) ・ (Light body)

 It is a compound having a photoconductor, (), (S), aum (, oxygen (), and () in the case of the following ().

 2

mX) XS gy O 2 y2 m 3 (However, the element in the composition () is one of gneum (sium (C a), sutium (S), and um (a)). For this, strontium (S) is preferred. It is done. In addition, by including um (C a) as an element, the amount of um C a) can control the length of the red light body as will be described later.

 The composition (),,,,, 35, O, O 2, 0 is satisfied.

 The nitrogen (number of elements 2 2) 3 in the composition () is calculated so that the sum of the number of elementary elements in the composition () becomes neutral. In addition, if the number of () elements in the composition () is compensated and the elements constituting the composition () are compensated, then 0 of 2 () 2 4X 9 3 2 3 is obtained. As a result, the number of children of nitrogen ()

 2 2 (3 is issued.

 The light body of composition () above is a compound composed of a crystal belonging to the oblique point P 2. Thus, in the crystal structure, the part (S) is replaced by aum (. The characteristics of the light body in the above structure will be explained. Composition using

The sketches of the light bodies () to (7) are shown. In addition, the spectrum of the conventional GC e phosphor is shown. In addition, the light bodies () to (7) of the composition () read from the spectrum are shown. , Measurements are measured when SP X ORO OG3 is irradiated with 450. Sampe u degrees degrees

 Ratio YAG ratio YAG X Y No (X m) nm)

 7228 664 ・ 39 020 0678 0321 6226 667 42 0 ・ 21 0677 0322 5029 662 ・ 48 022 0677 0323

 4) 175 659 ・ 5 026 0671 0328

 5) 7514 648 58 034 0661 0338

 366 636 174 047 0648 0351 ・ 56 626 ・ 66 059 0627 0372

As shown in this figure, the light body to (7) in the range of the composition () is about 5 times higher in pixel length than the conventional Y light body. Also, the peak length is 620 to 670, and it can be seen that good red light emission is obtained compared to the color of the conventional VA light body.

 In particular, the light bodies () to (3) having a composition () of 0.5 can obtain particularly good red light emission near the emission spectrum.

 On the other hand, in the composition (), if the light bodies are () to (7) of 5, it is possible to obtain light emission with a high degree of pixel length in the emission spectrum.

 With luminous R

2 () shows the ratio of the light in the composition range to that in the composition () as for the conventional GC e light. 2 From (), the photo of composition () has a luminous intensity near 3 · 75 and emits light depending on the degree of um (). You can see that the degree changes. And if the composition () has a luminous intensity of 5 times that of the conventional GC e illuminant, it is possible to obtain the highest luminous intensity in the vicinity of 3.75. I understand that.

 , 2 (2), the degree of the light body in the range of the composition () relative to the x of the composition () is defined as the relative to the G Ce light body. From this 2 (2), the light body of the composition () It can be seen that the higher the degree of um (), the lower the relative degree because the peak of the emission wavelength is shifted higher.

 For chromaticity

 3 shows the (X) of the light body of composition (). The value of in the range of the light body and composition () is set for each, and the degree of um () is changed. It can be seen that the higher the degree of um () to elemental element (S), the higher the degree of chromaticity (X) X). From this, it can be seen that the light body of the composition () can be controlled by the degree of um () relative to the element sium (S).

 For the length of A

 Figures 4 and 5 show the data obtained by quantifying the spectrum of the photoconductor of composition () as the maximum pixel C PS. The data of 4 and 5 show the sphere of the light body with the number of children of Aum () changed in the range of (), respectively. As a comparison, the spectrum of compounds not included in Aum (the number of children of which is within the range of composition () is also shown.

 From these data, it can be seen that the luminous body of the composition () tends to shift the peak of the luminous intensity to the longer wavelength side as the degree of Aum (is higher.

The number of children of Aum ( Shows the changed light object's sketch. In the part of these data, a comparison is also shown for the compounds that are not included in 2 where the number of children of Aum (the number of children is within the range of composition ()). (S) and Aum (9) with respect to the total of Aum

 Indicates.

 As shown by the big length of 7 (), there is a tendency that the higher the composition and the amount of Aum (of (9)), and the higher the degree of Aum, the larger the peak to the longer wavelength side.

 In addition, as shown in the degree of bigness of 7 (2), it can be seen that the degree of pictoriality is higher at 0 (9) 8 ・ 2 corresponding to the number of Aum's children in the range of composition (). . In addition, the degree of the picture is higher in 2 which is the range of the clear (). When the peak is low, the full width at half maximum is confirmed by integration (9

 In 8.2, it is confirmed that the degree of picture is high. Furthermore, as shown in the value range of 7 (3), it can be seen that the higher the value of (9) of the composition () and the higher the value of the Aum, the wider the value range of the spectrum.

 For the length of the pic

Figure 8 shows the scatter in the light body where the elements in the composition () are strontium (S) and um (Ca), and the combination of them is changed. As shown in Fig. 8, it was C a S, that is, 664 when um (C a) was not included. That was C a S · 27, that is, 678 when um is 0 · 27 against smium. Also, C a S 0 4, that is, 679 when strontium is 0 · 4, and 679. C a S · 55, ie It was 684 when the ticks were 0 to 55.

 Thus, if um (a) is included as an element in the composition (), increasing the content of um (C a)

 It is possible to shift the length of the red light body represented by () to the longer wavelength side. 9 shows the nature of the light body (9) having the composition (). In addition, () et al., Which do not contain aum, also showed the nature of a zero light body (9) and the nature of a conventional Ce light body.

 As shown in Fig. 9, the light body with composition () and the light body containing aum (9 and the conventional Ce light body have higher properties under heating conditions and have better properties. You can see that

 This is considered to be due to the inclusion of aum (in the crystal as long as hydrolysis does not occur as in the case of a conventional compound photoconductor. Also, the crystal structure belonging to the point P 2 indicated by the composition (). In this case, the c-axis is extended by the replacement with the silicon (S), and the distance between the ums (the distance between them) seems to be related.

 That

 The red light body represented by the composition () may contain carbon (C). This (C) is an element derived from the raw material in the process of the red light body, and may be left in the synthesis that constitutes the light body without being removed during the synthesis. By including (), it performs the function of adjusting the amount of oxygen by removing excess () in the generation process.

 Light body

In addition, it is possible to use sen (Ce) instead of um () in the red light body and composition (). In this case, the red illuminant contains sen (C e) Both shall contain thium (), nato (, and calum () as its children.

 Light body 2

 In the above embodiment, the compound () containing aum as a red light body was described. However, examples of the red light body include compounds composed of phosphorus, strontium, um, nitrogen and element that do not contain aum. This compound is represented by (2) below.

 3 S

 X S g O 22) ・ ・ (2) However, (2),,,, satisfies the relations 0 ・ 5 ・ 0, 3 ・ 5 4 ・ 0, and O 3 ・ 0.

 The number of nitrogen () in composition (2) 2 2 () 3 is also calculated so that the sum of the number of elements in composition (2) becomes neutral.

 The red light body represented by (2) may contain force (C a). By increasing the abundance of um relative to the stanchion, the evening wavelength of the red light represented by (2) above can be shifted to the longer wavelength side.

 In addition, the red light body represented by (2) above may contain carbon. By including the element, excess () is removed in the generation process, and the oxygen content is adjusted.

The red light body represented by (2) has the same effect as the red light body represented by () above. At the same time, it is easy to handle because there are few components. Also, since the crystal structure is simple, there are points when there are fewer defects. However, as explained using 9, the light body with composition () is more Excellent thermal properties.

 2 ・ 2 (light)

 Next, the implementation of the above () light body law will be described below with reference to 4 Cha.

 First, S as shown. At this point, it is characteristic that lan (C3 6 6) is mixed as a raw material together with a compound containing the elements constituting the composition ().

 As the compound containing the elements constituting (), the acid compounds of the elements, stonium (SC 3), pyrium nitride () (S S 4), and aluminum nitride () are prepared. Then, the compound is adjusted to a predetermined ratio so that the element of () contained in the prepared compound becomes the number of children of the composition (). These compounds are mixed to form a mixture.

 In addition, as a run or a rack, a predetermined amount is added to the total number of carbonic acid carbonate, nitride, nitride and aluminum.

 Mix with agate in a nitrogen atmosphere box, for example.

 Next, process step S2. In this processing step, the compound is baked to produce a red light body. The above compound is put into nitriding and heat treatment is performed in an atmosphere of hydrogen (2). In this processing step, for example, the degree of heat treatment is set to 400 mm, and the processing between two is performed. The degree of treatment and heat treatment can be further changed within the range where the above compound can be baked.

 In the processing step, the ra with melting point below 250 C is solved. Some of the dissolved carbon (C) and hydrogen (

() Combined to become carbon dioxide (if 2) or 2, Since W gas 2 is vaporized, it is removed from the above. In addition, () included in the decomposed la is transformed into an element. Then S 3. In this degree, the above

 And generate the end. In the box in a nitrogen atmosphere, use the agate and pass through the above, for example, 00 messages (the letter O is a letter) to obtain an average diameter of 3 or less. As a result, the component unevenness is generated in 2 generated in the 2 processes of the next step.

 Next, 2 treatment process S. In these two treatment steps, the above powder is heat-treated to produce 2. For example, the above powder is put into nitriding and heat treatment is performed in a nitrogen (2) atmosphere. In these two treatment steps, for example, the above-mentioned atmosphere was pressurized to 0 · 85 Pa, the heat treatment degree was set to 80 n, and the treatment between 2 was performed. The degree of treatment, heat treatment, and the like can be changed within the range where the powder can be baked.

 Thus, the red light body represented by () is obtained by performing the two treatment steps. A quality product represented by 2 (photoconductor) and composition () obtained by the two treatment steps is obtained.

 Then 2 S 5. In these two steps, the above 2

 To generate the second end. In a nitrogen box, use agate and grind, for example, using 4 mesh (for 26) until the diameter is 35 degrees.

 By the method of light body, a light body of fine powder (with an average diameter of 3.5) is obtained. Thus, when the red light body is used, it becomes mixed when it becomes transparent together with the end of the light body.

According to the above, each element is contained in the number of atoms mixed in S W () Light body can be obtained.

 Light body law

 The production method described in the paragraph 4 can also be applied to the method of the compound (2) above which does not contain aum (as a photoconductor.

 In this product (2), stoichinic carbonate, lithium nitride

 By burning lan and mixing the mixture, a red light is generated. At this time, the lan is decomposed, and the hydrogen contained in the la is combined with the oxygen in the strontium, for example, gas 2 and a part of the element is removed from the strontium.

 In addition, since the powder is produced, unevenness of components is caused in 2 produced in the next two treatment steps.

 By heat-treating the powder to produce 2, the 2 (photoconductor) obtained by the 2 treatment steps can be of the quality represented by the composition (2).

 Furthermore, this 2 and 2 end are generated. By making a red light body like this, it becomes mixed together when it becomes transparent with the end of the light body.

 The red light body obtained through the process has a red light wavelength (in the range of 640 to 770) as shown in the following. In this way, if the raw material does not contain aluminum nitride, it is easy to handle because there are few constituents. In addition, since the crystal structure becomes simple, there are points where there are fewer defects.

 3 ・ 3 (of colored light)

 Next, an embodiment relating to bright colored light will be described with reference to the front view.

As shown in the white light, the diode formed on the element 2 Has blue light emitting diode 2. The electrodes for supplying the power for driving the color light emitting diode 2 are insulated and each is connected to the color light emitting diode 2 by 4, for example, a lid.

 Further, for example, 3 is provided for the color light emitting diode 2, and an opening 32 for opening the color light emitting diode 2 is formed in the 3. The mouth 32 is formed in an inclined surface having an opening area wide in the direction of the color light emitting diode 2, and a reflection 33 is formed on the inclined surface. In addition, in the resin 3 having the lip portion 32, the surface of the opening 32 is covered with the reflection 33, and the blue light emitting diode 2 is disposed on the surface of the garden opening 32. In the mouth portion 32, a red light body and a green light body 43 are embedded with the blue light emitting diode 2 in a state to form a color light.

 The light body is characterized by the use of the above light body ().

 As an example of a red light body, the element in the composition () is assumed to be tungsten (S), and 4 ·, 0 · 7, 0 · 7, 0 · 7 and so on (S 34 07) S 7 The compound represented by 075 was used.

 As an example of the light body, a compound represented by the composition (S a) 2S 4 was obtained.

 Then, the above 43 was prepared using a 0 · 0 5 light body and a 0 · 459 light body. As an example, Shin-Etsu Chemical JR637 (product name) (rate: 5) was used. The white light produced as described above was as follows.

The color light emitting diode 2 had a current of 3 · 235 mm, 40 at that time, and a current of 3272. The following I became W. (Rada x) was 3 W WP ・ 20 S was 6 ・ 8 527 and chromaticity (2639 (v) was 0 ・ 2639. WP is leeks, S is mess, W is the light emission rate. is there.

 The emission spectrum was found to have wavelength peaks in blue (45), green (534), and red (662), as shown in FIG. Further, as described above, the bright light body has a red light wavelength (from R 0 to 7), a strong light intensity, and a high brightness. Therefore, it is possible to obtain bright color light of three colors: blue light, green light from the green light, and red light from the red light.

 Therefore, there is a point that the above-mentioned color light can obtain a wide bright color light.

 ・ 4 (position)

 Next, an embodiment related to Ming's position will be described with reference to the 3rd view.

 As shown in FIG. 3, the illumination 5 has a plurality of white lights described on the illumination 5 described above. For example, it may be a tetragonal array as shown in (), or an array shifted every two pitches, for example, as shown in (2). Also, the pitch to be shifted is not limited to 2, but may be 3 pitch or 4 pitch. In addition, it may be shifted by every (if 2).

 If you do, you can arrange it every other pitch, for example by 2 pitches. Also, the shifting pitch is not limited to 2, and may be 3 or 4 pitches. In addition, it may be shifted every two or two (2).

That is, the method of shifting the color light is not limited. The colored light has the same configuration as described above. That is, the colored light has 43 which is a red light body and a green light body on the blue light emitting diode 2.

 The light body is characterized by the use of the above light body ().

 In addition, the above 5 is equivalent to light since a plurality of the above 5 are placed horizontally on the same color light 5 as the light, so it can be used as, for example, a table light. In addition, it can be used for normal installation, shooting, and construction sites.

 Since 5 is used for bright color light, it is possible to obtain wide bright color light. For example, when used for a desktop light, it is possible to obtain a white color on the display surface and to improve the quality of the display surface.

 5 ・ 5 (position)

 Next, one embodiment according to Ming's position will be described with reference to 4.

 As shown in 4, 00 has transmission

And Cry 20 with the net 0 on the side. For the light 0, the illumination 5 described with reference to the above 3 is used.

At 00, the light 2 of 5 is used, so that it is possible to illuminate ne 0 with 3 colors of light, but with bright color light. Therefore, it is possible to obtain the appropriate white color on the surface of the net 0, and to improve the quality of the display and improve the quality of the display surface. Next, the light body of the above () as a clear, and the compound (light body) out of the above () as a comparison, was synthesized as follows according to the procedure described using the 0 zero. .

 , S. Here, stannic carbonate (S C 3) um (), nitriding (S 84), nitriding aluminum (), and lan (C3 6 6) were prepared. The desired compound was mixed with agate in a box in a nitrogen atmosphere to the ratio shown in 2 below. This is the sum of the numbers of other compounds.

Sampe SC 3 E S3 4 A1 run

 No mo mo mo 1

(442 92 368 98 60 m 435X 075 y 0.8

 2 444 86 37 99 60 m 430 070 y 08

 44 78 39 9 60 m 400X 060 y 07

 (4 46 58 39 9 60 m 400Ⅹ 045 y 0.7

 48 39 39 9 60 m 400X 030 y 0.7

 50 9 39 9 50 m 400 5 y 0.7

 () 5 3 06 39 95 50 m 400 005 y 0 · 7 2, processing step S 2 was performed. Here, the above compound is put into nitridation, and hydrogen (2) in an atmosphere of 4 o

 Processing between 0 C and 2 was performed.

Next, S 3 was performed. Here, in the box in a nitrogen atmosphere, using the agate, it passes through the above-mentioned 00 me (200), and the average diameter is 3 below the diameter. Got.

 Next, 2 treatment step S4 was performed. Here, the end of

 Then, the process between 80 and 2 was performed in the atmosphere of 0 · 85 Pa (2). In this way, 2 was obtained.

 Then 2 S 5. Here, the above 2 was used in a box in a nitrogen atmosphere. Grinding was performed until the average diameter reached 3.5 degrees using 420 mesh (26).

 According to the method of light body, fine powder (average diameter is 3.5

 )

 The red light produced as described above was analyzed by CP. As a result, it was confirmed that the elements constituting () contained in the raw material compound were contained in the red light body as they were (). Then, it was confirmed that a light body having the composition () was obtained as in 2 above. The light bodies of the produced sumps o () to (7) are the red light bodies () to (7) shown. The light bodies () to (7) within the composition () range are about 5 times higher in pixel length than the conventional YGC e light body, and good red light emission is obtained. This is the same as described above using.

 2

In the same order as described, a photoconductor of S 34 07S g 07 07 0 (4 · 0 7 0 · 7 0 7), which is an example of the composition (), was produced. Elemental 0 in Example 2 is roughly equivalent to the composition () 2 2) 3, which is due to the low reliability of elemental analysis and the constant value of elemental concentration in C analysis. CP SSA is very reliable, and the composition () is formed by considering charge compensation based on the values of S,, and S There is no doubt about that.

 X rows were made on the red light body made. Figure 5 shows an S-image showing the analysis point in the red photon. As shown in Fig. 5, X rows of 6 to 4 in the same particle, and in it 56 in another particle. 6 and 7 show this result.

 As shown in Fig. 6, the trust of the image of 5 is uniform, and as shown in Fig. 6, it can be seen that the X profile is a large one in the same particle, and it is almost uniform. In addition, as shown in Fig. 7, it was confirmed that even if another particle had a large X-pile, almost the same child was formed, because of (C). 8 shows the expansion of the S-image of 5. From this figure, it can be seen that rules are observed in the particles, and a single crystal light body is obtained by the above method. In addition, the produced red light body showed a good agreement with the oblique point P 2 established by the toto analysis.

 Three

 In the same order as described, a light body was produced in which the abundance (number of children) was changed within the composition (). (9) 2・ 425 X 8 75 As a comparison, a photoconductor (no numerator) containing no Aum 1 was also produced.

Figure 9 shows the results of XR analysis of the manufactured light body. As shown in Fig. 9, it can be seen that the pixel position appearing in (20) is added in the direction of the peak by adding the abundance (number of numerators) of. The nearby bike is a (20) shifts in the direction of increasing as the quantity of 1 (the number of elements) increases. On the other hand, the quantity (number of elements) of the peak near the diffraction 203.5 / 5 (28) becomes the direction that increases, that is, it can be seen that the a and c and b axes at the oblique point P 2 become shorter as the quantity of Q (the number of children) increases. Note that this was confirmed in the same way even when the number of children of, was changed in the range of ().

 As a result, since the Aum present in the red light body is replaced by (S) to form the single crystal part described above, the lattice spacing in the single crystal changes. The In other words, it was confirmed that the red light body composed of the single crystal described above contained an ammium (so as to form a single crystal part. The model at the diagonal point P 2 showed a good match.

 Four

 In the same order as described, a composition () light body was fabricated by changing the thickness of la.

 The luminous intensity of the manufactured light body with respect to La is shown as 20 as the luminous intensity ratio with respect to the G Ce light body. As is clear from 20, the degree of red light obtained varies depending on the amount of red light used. Since the value of the run is the highest when the luminous intensity is highest, it is important to select the optimum for each of the synthesized red light bodies.

 Five

A light body surrounded by the composition () was produced in the same order as in the case of changing the heating degree in the processing step in the procedure described. Second, the degree of the red light produced is the degree of the G Ce light. From Fig. 2, it can be seen that the red light body changes depending on the processing step. For this reason, it is preferable to optimize the degree of the processing step in the manufacture of the light body having the composition, and a temperature of about 300 ° C. has been confirmed to be good.

 6

A red phosphor was produced in the same manner as in the procedure except that the raw material compound ratio was changed to 3 as described below. Outside of S g 0, it was possible to obtain a light body within the composition (). A red light body having a composition () of 0 and containing no aum was obtained.

Sump SC 3 EuN S3N4 AN

 No mo mo mo mo

 mo

 9 42 55 10

 9 02 43 ・ 10 ・ 6 0 ・

 S9 03 43 ・ 6 ・ 00 6

 9 04 44 367 10 ・

 9 05 4d

 ・ 92 37 0 6

 9 5 ・ 37

 9 3 0 400 0 ・ 6

 9 4 ・ Ⅱ 9 389 00 6

 9 5 2 ・ 94 37 ・ 0

 9 4 92 6 ・ 6

 9 453 5

 S9 8 464 8 49 ・ 0

 S9 43 5 ・ 88 7 ・

 9 44 5 ・ 8 ・ 8 7 ・

 9 45 5 ・ 8 ・

 9 46 5 ・ 88 7 6

 S947 45 8 ・ 8 8

 9 48 5, 7, 8

 9 0 7 2 0

 S9 4 ・ 9 ・ d 39 ・ 6.2

S9 2 3 59 20 3 The emission spectrum was measured on the light body obtained as above. A spectrophotometer was used with a length of 450 and a wavelength of 460 to 780 was measured. The results are shown in 4 below.

sample

 No (X (Y) degree ratio

 S9 0 673 ・ 23 0685 0314 089

 S9 02 672 ・ 28 0683 0 ・ 3 7 ・ 00

 S9 03 666 134 0680 0319 ・ 6

 S9 04 664 38 0680 03 9 ・ 20

 S9 05 667 ・ 42 0679 0320 27

 S906 660 ・ 27 0676 0324 ・ 26

 S9 3 665 085 0679 0320 073

 S9 4 667 ・ 22 0683 0316 097

 S9 5 667 35 0682 0317 1

 S9 6 672 ・ 33 0680 0318 ・ 00

 S9 7 665 ・ 31 0678 032 ・ 3

 S9 8 666 ・ 22 0677 0322 ・ 12

 S9 43 673 098 067 0327 093

 Sg 44 673 ・ 04 0677 032 09

 S945 673 ・ 09 0678 0320 094

 S946 662 ・ 25 0674 0324 127

 59 47 662 ・ 34 0678 0321

 S948 658 035 0671 0327 039

 Sg 0 664 ・ 15 0679 0320 096

 673 ・ 26 0 ・ 68 03 8 1 ・ 0

 The ratio of S9 2 666 • 6 0680 0319 099 is the phase when the Y Ce) is taken as.

 It corresponds to a 6 x 5 c s of Ce)

 The degree ratio is the phase based on the degree of CaS.

Corresponds to a degree ratio of (Y G Ce) of 5.

Four Figure 5 shows the results of the G Ce light body and the CaS compound light body as standard light bodies for comparison. Pic

 Pic

 Sample ratio X) (Y) Degree ratio

 m)

YAG Ce 566 6 0465 05 7 550

(Monster

 CaS Eu 656 80 0702 0296 ・ 00

 5) As shown in 3 and 4, the red light body has a pixel ratio ratio of • 0 above that of S g 0 to S g 06 S g 0 to S g 2 and S g 4 to S g. 8, and S g 44 to S 9 47.

 In addition, the relative ratio of the Ca S compound relative to the degree of the light body (below, relative ratio) is above 0, which is from Sg02 to Sg06 SgSg and Sg. 5 to S g 8, and S g S 9 46 S g S 9 47.

 Therefore, in order to generate a red light body with the above-mentioned light body having a pixel ratio ratio of 00 or a relative degree ratio of 。0, it is necessary to make the material have the following component ratio.

 For example, it is below the above-mentioned strontium 42 8 O 4 O.

 Is 7 · 5 above 0 8 O below. 36 O o. Upper 37 8 O Lower.

Aum 8 7 O 0 o down. W For the number of o, including the above-mentioned strontium, nitride, nitride, ac and la,

 60 O 65 O Move down.

 In particular, in the above method, the ra ratio is important. As described above, the melting point of 25 and below is thermally decomposed in the above treatment process. The carbon (C) and hydrogen () produced by the lanthanum decomposition are contained in the () bond () and become a gas (or 2 or 2). So, you can have too few or too many runs.

 For example, the results of S 43 to S 48 shown in 3 and 4 above are shown in 22 2. 2 is the degree of pico with respect to La's, and 23 is the degree of degree against La's.

 As can be seen from 23, the pixel ratio is • 0 above 45 O 67 O below the run.

 Also, as is clear from 23, the relative degree ratio is • 0 above 56 O 68 o below the run.

 Therefore, in the case of the raw materials shown in S 43 to S 48, it is preferable to set the level to 56 o above 68 o below la. , 2, 23, etc., it is possible to increase 3 O in the above-mentioned direction and in many directions.

 Next, Fig. 24 shows the relationship between the amount of elements remaining in the red light body of La and Fig. 25 shows the relationship between the amount of elements remaining in the red light body of Lan.

 As shown in Fig. 2, the amount of red light element changes as the number of red rays changes.

In particular, when La is added above 55 O, the red light element is reduced. This is due to the combination of carbon hydrogen produced by La and oxygen in the stoichinic carbonate, resulting in carbon dioxide (CO C 2 etc.), 2 etc. This is because it is excluded.

 However, when La is made to have a high component ratio of 70 O, carbon that has been solved in the treatment process remains too much, and the amount of carbon is too large. For example, if the amount of element remaining in the red light body is 0 ·, the pixel ratio is 0 · 3, and the relative intensity ratio is 0 · 39. Thus, it can be considered that the residual, luminous intensity, and luminance are greatly reduced. Therefore, as described above, it is more preferable that the upper limit is 6 to 65 O.

 It also depends on the red light body. As shown in Fig. 26, when the run length is increased, the diameter of the red light body decreases. The diameter of the red light body was about 5 when 45 O was added to the run, and the diameter of the red light body was about 3 · 7 when 60 O was added to the run. In addition, when 65 La was added, the diameter of the red light body was approximately 35.

 Even in this way, it is important to produce fine powder light bodies.

 Next, it was adjusted by nitriding. Fig. 27 shows the relationship between the degree of red light and the degree of red light based on 3 and 4, and Fig. 28 shows the relationship between the degree of red light and nitriding.

 As is clear from Fig. 27, it is confirmed that the degree of brightness ratio is higher than 0 when the nitriding is lower than about 7.0 o 0 O. It was.

In addition, as is apparent from 28, the relative degree ratio is • 0 above 7.0 mO of nitridation • 0 o below. However, as shown in 3 and 4, the sump S g As in 3, 0 O of nitriding. Even so, the degree ratio is 0. May be 85. This is thought to be due to the low carbon dioxide stock. Thus, according to other raw materials, nitriding

 May be right. Considering this point, nitriding

 It is more preferable to set it below 7.00 25 O.

 Next, in 3 and 4, the ratio of LA was fixed to 60 O, and the ratio of aluminum nitride was fixed to 0 O. Figure 29 shows the distribution of nitridation and the degree distribution when the fraction ratio of N is changed. O and pictograph are shown for and.

 As shown in Fig. 29, sub Sg 0 to S g 06 and sub S g S 8 have a degree ratio of 2, especially sub S g 03 to S g 05 and sub It was found that S g 5 to S g 7 had extremely high values with a degree ratio of 3 and above.

 Here, the X-line of the C-line was adjusted using powder X manufactured by Sub S 9 47 having a light-emitting pixel length of 662 as the light body. The result is shown in FIG. That is, it shows the structure of the phosphor. The X-ray analyzer also confirmed that the red light body obtained by the above method is the oblique point P2.

 7

Next, in the procedure described in the implementation, red light was used in the same manner as in the implementation except that, as the raw material compound, further, nitride (C a 2) was used and the ratio of the raw material compound was changed to the following 6. The body was made. Run

 Ca3N2 S C 3 E N S3N4 AN

 Of S9

 mo) (mo mo0 (mo o

 (mo)

 S9 Ca 1 442 92 442 98 60

 S9 Ca 2 4 · 5 347 100 00 0 · 7 60

 S9 Ca 3 7 ・ 294 0 ・ 5 4220 2 60

 S9 Ca 4 9/8 235 11.0 440 7 60 6 The emission spectrum was measured on the light body obtained as described above. The spectrophotometer was used at a wavelength of 450, and the wavelength ranged from 460 to 780. And so on. The results are shown in 7 below. Beep

 S9 degree ratio

 ) (X) Y)

 S9 Ca 1 664 ・ 31 0 80 0320 ・ 12

 S9 Ca 2 678 ・ 30 0685 0315 088

 S9 Ca 3 679 24 0688 0 ・ 3 2 073

As shown in S9 Ca 4 684 8 0690 0310 0 3 7 6 and 7, it was confirmed that the optical wavelength shifts to the longer wavelength side with more of the nitride nitride. When no nitridation was added, the peak light wavelength was 664. Then, when adding 4 ···, the wavelength of the peak light becomes 678, and when adding 7.0 ·· 0, the wavelength of the peak light becomes 679, and when adding 9 · 8O, the wavelength of the peak light is 684 °. It became. However, increasing the amount of Nitride decreases the brightness. There was a tendency to become prominent. Therefore, it is necessary to consider the lowering of the brightness, although it is possible to perform the optical wavelength by adding nitride. In addition, if it was not applied under 9 · 8 O of nitride, it was possible to obtain an emission with a pixel ratio of • 0. In addition, even with 9 · 8 O, a nitrogen compound, a degree of • 8 can be obtained.

 Therefore, the luminous intensity of the nitride nitride in the above range is not greatly affected.

 Note that the above ratios of strontium (S CO 3), nitride (), nitride (S 3 4), nitride () and lan (C3 6 6) in the above method By adjusting the ratio of, it can be set to the maximum and the following range.

 In other words, the above strontium is below 23 5 O 0 O.

 33 0 0 0 Under 0.

 Is 7.00 above 25 O below. Aum is at least 0 O, including at least.

 Or 6 of the above for the combined number of strontium, nitridation, nitridation, and aluminum. Upper 65 O Lower.

 In the above-mentioned method of light body, La is used as a carbon source. For example, it is possible to use an organic substance composed of carbon, hydrogen and element in addition to the above-mentioned La. Note that organic substances containing oxygen are not preferred. It is also possible to use carbon powder for the above la.

Claims

 Red light body having, (), Li (S), Aum ((), and (  [Chemical 4  m XS gy O 2 y2 3 , Satisfies the relationship 3 5, 2, O 0. 2 The compound indicated by () is composed of crystals belonging to the oblique point P 2  The light body described. 3 ・ is the stock (S)  Or the light body of 2. 4. ・ Prepare elemental acid compounds, nitride, nitride, and ac so that um (), li (S), and aum (are the number of children in () below. Is mixed with la to form a mixture,  Of the compound obtained by  Of the light body.  [Chemical 5 A ・ mX) XS g A y O 2 y2 (n 3 ...... (1 However, the origin of the composition () is the same as that of Gneum (, C (C a), Stoichi (S), or Rium (Ba  ,, And in the composition () satisfy the relationship 3 5, 2, 2 On. 5 ・ Repeat what was obtained by  Of the light body according to 4. 6.Blue light emitting diode formed on top,  A red light emitter and a green light emitter disposed on the color light emitting diode;  The light body is  White light having elements, (), (S), aum () (), and () with the number of children in the following ().  6 m X S g y O 2 y2 1 However, the element A in the composition () is the one of gneum (, calcium (C a), strontium (S), or lithium (Ba),  In the composition (),,,,, 35,, O 2, O are satisfied. 7.Multiple colored lights are placed on top,  The colored light, A blue light emitting diode formed on the device, Arranged on a color light emitting diode and having a red light body and a green light body,  The light body is  The elements um (), (S), aum () (), and () have the following number of children ().  Mx XS g 2 2nm 3 Satisfies the relationship 3 5, 2, 0. 8 Ne  A light using a plurality of colored lights for illuminating the light,  A blue light emitting diode formed on the device,  A red light body and a green light body disposed on the color light emitting diode.  Have  The light body is  The elements, um (), ri (S), um () (), and () have the following number of children (). 8 A℡XXS gy O 2 y2 (n 3 ・ ・ ( However, in the composition (), it is the element of genium (, um (C a), strotium (S), or um (a),  ,,,, 3 5, 0, 2, in composition ()  Satisfy the relationship 0.